%%
%% The LaTeX Companion, 3ed
%%
%% Example 16-7-15 on page II-551 in "Printing the bibliography".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{237.0pt}

%  Use biber program
\makeatletter
\renewcommand\section{\@startsection{section}{1}{\z@}%
                                    {-1.25ex \@plus-1ex \@minus-.2ex}%
                                    {.5ex}%
                                    {\normalfont\normalsize\bfseries}}
\makeatother
\setlength\parindent{0pt}

%StartShownPreambleCommands
\usepackage[style=authoryear]{biblatex}
\addbibresource{tlc-ex.bib}
%StopShownPreambleCommands

\begin{document}
\textcite{article1}, \textcite{article2},
\textcite{book1}, \textcite{book2}

\printbibliography
 [type=book,title=Books]

\printbibliography
 [nottype=book,title=Not Books]

\printbibliography
 [keyword=important,title=Important]
\end{document}
